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4. Commissioning
Ensure that all AC wiring is correct. Ensure that none of
the AC and DC wires are pinched or damaged. Ensure
that all junction boxes are properly closed.
To commission the AC system:
A
Turn ON the AC disconnect or circuit breaker on the
microinverter AC branch circuit. Check the voltages
on the AC interconnection cable pins to ensure
proper wiring. Please verify proper AC cable
voltage prior to connecting to live voltage or
connecting the harness to the Andalay AC
string (see figure 18). Failure to properly
connecting the wires can result in severe
damage and void the warranty.
B
Turn OFF the AC disconnect or circuit breaker and
connect the AC interconnection cable to the
string/branch.
C
Turn ON the AC disconnect or circuit breaker. Your
system will start producing power after a five-minute
wait time.
D
The
AC
microinverters
performance data over household wiring to the
Envoy. The time required for all the microinverters in
the system to report to the Envoy will vary with the
number of microinverters in the system. The first
units should be detected within 15 minutes;
however, the entire system could take hours to
detect. Please refer to the Envoy installation and
operation manual for further information.
The microinverter is powered on when sufficient sunlight hits
the solar panel. The status LED will flash green six times
indicating proper start-up.
In the event of a PV ground-fault detector interrupter (GFDI)
failure, the status LED will display continuous red after the
fault occurs. This will persist until AC power is cycled to the
microinverter.
System Equipment Maintenance
MATERIAL AND TOOLS LIST
D
Manufacturer's literature and troubleshooting guides.
D
Volt- ohm meter
D
Gauges
D
Thermometer
D
Assortment of screwdrivers, nut drivers and wrenches.
WARNING
Electric Shock Hazard. Can cause injury or
death.
Unit
accordance with national and local codes.
Line voltage is present at all components
when unit is not in operation on units with
single‐pole contactors. Disconnect all
remote electric power supplies before
opening access panel. Unit may have
multiple power supplies.
will
start
to
send
must
be
grounded
in
Page 23
OUTDOOR UNIT
Refer to the maintenance section in the installation
instructions provided with the outdoor unit.
SOLAR MODULES
D
Check for any shading problems caused by new plant
growth.
D
If dirt build-up becomes excessive, clean the glass
surface only with a soft cloth using water. Avoid solvents
and strong detergents.
D
Once a year, have qualified service personnel check the
general condition of the wiring and check to be sure that
mounting hardware is tight.
MICROINVENTER AND MONITORING DEVICES
These devices have no maintenance requirements.
Troubleshooting
COMMON SYSTEM FAILURES
D
Check for blown fuses, tripped breakers or poor
electrical connections.
D
Check system for proper system voltage and current.
OUTDOOR UNIT
Refer to Lennox Service Manual for troubleshooting
information
SOLAR MODULES AND MICROINVERTERS
1. Troubleshooting
Adhere to all the safety measures described throughout
this document. Qualified personnel can use the following
troubleshooting steps if the solar system does not
operate correctly:
WARNING
Do not attempt to repair the microinverter; it contains no
user-serviceable parts. If it fails, please contact Enphase
customer service to obtain an RMA number and start the
replacement process.
Microinverter Status LED Indications and Error
Reporting
Start-Up LED Operation:
D
Six short green blinks when DC power is first applied to
the microinverter indicate a successful microinverter
start up sequence.
D
Six short red blinks when DC power is first applied to the
microinverter indicate a failure during microinverter
start-up.
Post-Start-Up LED Operation:
D
Flashing Green — System is producing power and
communicating with Envoy.
D
Flashing Orange — System is producing power and not
communicating with Envoy.
D
Flashing Red - System is not producing power.
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